33 lines
1.2 KiB
C#
33 lines
1.2 KiB
C#
using System;
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using System.Text.RegularExpressions;
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namespace Tapeti.Default
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{
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/// <inheritdoc />
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/// <summary>
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/// IExchangeStrategy implementation which uses the first identifier in the namespace in lower case,
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/// skipping the first identifier if it is 'Messaging'.
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/// </summary>
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/// <example>
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/// Messaging.Service.Optional.Further.Parts will result in the exchange name 'service'.
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/// </example>
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public class NamespaceMatchExchangeStrategy : IExchangeStrategy
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{
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private static readonly Regex NamespaceRegex = new Regex("^(Messaging\\.)?(?<exchange>[^\\.]+)", RegexOptions.Compiled | RegexOptions.Singleline);
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/// <inheritdoc />
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public string GetExchange(Type messageType)
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{
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if (messageType.Namespace == null)
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throw new ArgumentException($"{messageType.FullName} does not have a namespace");
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var match = NamespaceRegex.Match(messageType.Namespace);
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if (!match.Success)
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throw new ArgumentException($"Namespace for {messageType.FullName} does not match the specified format");
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return match.Groups["exchange"].Value.ToLower();
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}
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}
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}
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